228851478 has 24 divisors (see below), whose sum is σ = 496148016. Its totient is φ = 76237200.

The previous prime is 228851473. The next prime is 228851489. The reversal of 228851478 is 874158822.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228851473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39423 + ... + 44853.

It is an arithmetic number, because the mean of its divisors is an integer number (20672834).

Almost surely, 2^228851478 is an apocalyptic number.

228851478 is an abundant number, since it is smaller than the sum of its proper divisors (267296538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228851478 is a wasteful number, since it uses less digits than its factorization.

228851478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780 (or 7777 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 228851478 is about 15127.8378494747. The cubic root of 228851478 is about 611.6710233719.

The spelling of 228851478 in words is "two hundred twenty-eight million, eight hundred fifty-one thousand, four hundred seventy-eight".